High-rigidity high-modulus antistatic PC composition and preparation method thereof

A high-modulus, anti-static technology, applied in the field of polycarbonate, can solve the problems of stress cracking, high notch impact sensitivity, general chemical resistance of polycarbonate, etc., to reduce the degree of phase separation, improve various properties, The effect of improving the notched impact strength

Active Publication Date: 2021-12-14
东莞市亚仑塑料原料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polycarbonate has very good impact strength, elastic modulus, and dimensional stability, but it is prone to stress cracking and high notch impact sensitivity, which are also the shortcomings of polycarbonate. Generally, it is still necessary to add tougheners for modification
However, the addition of toughening agents will inevitably lead to a decrease in the rigid properties of polycarbonate such as tensile strength and bending strength.
In addition, polycarbonate suffers from mediocre chemical resistance

Method used

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  • High-rigidity high-modulus antistatic PC composition and preparation method thereof
  • High-rigidity high-modulus antistatic PC composition and preparation method thereof
  • High-rigidity high-modulus antistatic PC composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A high-rigidity high-modulus antistatic PC composition, comprising the following raw materials in parts by weight:

[0026]

[0027] The preparation method of the polyketone / PA blend is as follows: 12.5 parts by weight of polyketone, 12.5 parts by weight of PA66 and 175 parts by weight of solvent are added to the reaction kettle, and the temperature is raised to 165 ° C under a high-pressure inert gas atmosphere. Insulate for 2 hours, then cool down to room temperature at a cooling rate of 2°C / min under stirring conditions, and finally perform solid-liquid separation, drying, and sieving to obtain the polyketone / PA blend.

[0028] Wherein, the solvent is composed of ethanol and n-butanol in a weight ratio of 85:15.

[0029] Wherein, the polyketone is POK M330A.

[0030] Wherein, the glass fiber is an alkali-free glass fiber with a diameter of 14 μm and a model number of EDR14-2000-988A.

[0031] Wherein, the antistatic agent is conductive carbon black.

[0032] Wh...

Embodiment 2

[0038] A high-rigidity high-modulus antistatic PC composition, comprising the following raw materials in parts by weight:

[0039]

[0040] The preparation method of the polyketone / PA blend is as follows: 15 parts by weight of polyketone, 15 parts by weight of PA66 and 200 parts by weight of solvent are added to the reaction kettle, and the temperature is raised to 170 ° C under a high-pressure inert gas atmosphere. Insulate for 1 hour, then cool down to room temperature at a cooling rate of 3°C / min under stirring conditions, and finally perform solid-liquid separation, drying, and sieving to obtain the polyketone / PA blend.

[0041] Wherein, the solvent is composed of ethanol and n-butanol in a weight ratio of 90:10.

[0042] Wherein, the polyketone is POK M330A.

[0043] Wherein, the glass fiber is an alkali-free glass fiber with a diameter of 20 μm.

[0044] Wherein, the antistatic agent is carbon nanotubes.

[0045] Wherein, the toughening agent is composed of S-2001 ...

Embodiment 3

[0051] A high-rigidity high-modulus antistatic PC composition, comprising the following raw materials in parts by weight:

[0052]

[0053] The preparation method of the polyketone / PA blend is as follows: 10 parts by weight of polyketone, 10 parts by weight of PA66 and 150 parts by weight of solvent are added to the reaction kettle, and the temperature is raised to 160 ° C under a high-pressure inert gas atmosphere. Insulate for 3 hours, then cool down to room temperature at a cooling rate of 1° C. / min under stirring conditions, and finally perform solid-liquid separation, drying, and sieving to obtain the polyketone / PA blend.

[0054] Wherein, the solvent is composed of ethanol and n-butanol in a weight ratio of 80:20.

[0055] Wherein, the polyketone is POK M330A.

[0056] Wherein, the glass fiber is an alkali-free glass fiber with a diameter of 10 μm.

[0057] Wherein, the antistatic agent is graphene.

[0058] Wherein, the toughening agent is composed of S-2001 and 1...

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Abstract

The invention relates to the technical field of polycarbonate, and especially relates to a high-rigidity high-modulus antistatic PC composition and a preparation method thereof. The PC composition is prepared from 70-80 parts of PC, 15-25 parts of glass fibers, 20-30 parts of a polyketone / PA blend, 10-12 parts of an antistatic agent, 4-6 parts of a flexibilizer, 1-3 parts of a compatilizer, 0.2-0.4 part of an antioxidant and 0.3-0.5 part of a lubricant. According to the invention, polycarbonate is used as a continuous phase, and the polyketone, the PA66, the glass fibers, the antistatic agent and the like are added as a blending modification system of dispersed phases, so that the composition has the properties of high strength, high modulus, antistatic property, chemical resistance and the like.

Description

technical field [0001] The invention relates to the technical field of polycarbonate, in particular to a high rigidity high modulus antistatic PC composition and a preparation method thereof. Background technique [0002] Polycarbonate (abbreviated as PC in English) is a high molecular polymer containing carbonate groups in the molecular chain. According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic-aromatic and other types. Among them, the low mechanical properties of aliphatic and aliphatic-aromatic polycarbonates limit their application in engineering plastics. Aromatic polycarbonate has become the main development of general-purpose plastics. Polycarbonate has very good properties such as impact strength, elastic modulus, and dimensional stability, but it is prone to stress cracking, and its high sensitivity to notched impact is also a shortcoming of polycarbonate. Generally, it still needs to be modified by adding a tougheni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L73/00C08L77/06C08K7/14C08K3/04
CPCC08L69/00C08L2201/04C08K2201/011C08K2201/017C08K2201/005C08L73/00C08L77/06C08K7/14C08K3/04C08K3/041C08K3/042
Inventor 卢文彪祝学远卢恒斌
Owner 东莞市亚仑塑料原料有限公司
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